The following behavior-changing defect reports were applied retroactively to previously published C++ standards. Notes: such uses are allowed via the resolution of CWG issue 613 in N2253, which is treated as a change in C++11 by some compilers (e.g. Non-static data members may be initialized in one of two ways: The macro offsetof may be used to determine the offset of any member from the beginning of a standard-layout class.Note that strict aliasing rules still apply to the result of such cast. In other words, padding is not allowed before the first data member of a standard-layout type. declaration is incompatible with 'extern 'C' int. A pointer to an object of standard-layout class type can be reinterpret_cast to pointer to its first non-static non-bitfield data member (if it has non-static data members) or otherwise any of its base class subobjects (if it has any) (since C++11), and vice versa. I have built cpputest 3.6 in IAR, but 3.7 and following versions do not.In a standard-layout union with an active member of non-union class type T1, it is permitted to read a non-static data member m of another union member of non-union class type T2 provided m is part of the common initial sequence of T1 and T2 (except that reading a volatile member through non-volatile glvalue is undefined).Standard layout types have the following special properties: (I have loaded IAR for ARM as indicated in the document) When I launch 'make' on Example,I have these errors (only firsts and last are copyed) : Code: Select all. Two standard-layout unions are called layout-compatible if they have the same number of non-static data members and corresponding non-static data members (in any order) have layout-compatible types. Examples delivered in RQ-Huno cdrom are not compiling.
enumerations with the same underlying type), or if their common initial sequence consists of every non-static data member and bit field (in the example above, A and B are layout-compatible) arm\inc\c\intrinsics.h') ErrorPe147: declaration is incompatible with 'nounwind thumb softfp signed long QADD(signed long, signed long)' (declared at line 157 of 'C:\Program Files (x86)\IAR Systems\Embedded Workbench 7.0\arm\ C:\Users\localadmin\AppData\Roaming\energymicro\CMSIS\Include\armmath.h 920 inc\c\intrinsics.h') What is the. Two standard-layout non-union class types are called layout-compatible if they are the same type ignoring cv-qualifiers, if any, are layout-compatible enumerations (i.e. A and E's common initial sequence is empty